International Journal of Computer Applications
In this paper, the authors propose an efficient and robust multi-server authentication scheme using smart cards. Security of this scheme depends upon cryptographic one-way hash function. This scheme allows remote users to access multiple servers without any need of separately registering with each server. Also, it gets rid of the use of verification table, permits users to select and update the password securely without taking help from the server or registration center, achieves mutual authentication and establishes a session key that is common between user and the server.